METHOD TO DETECT WATER IMPERMEABILITY OF BUILDING MATERIALS Russian patent published in 2015 - IPC G01N33/38 

FIELD: construction.

SUBSTANCE: reservoir is installed for tests, including hydraulic insulation of side surfaces of a sample and installation of a sample onto fixed supports. Then the reservoir is partially filled by water, so that during sample installation the wetted surface does not contact with water, and the sample is fixed hingedly along the neutral plane directed in the middle. Prior to tests the reservoir is rotated to ensure complete contact of wetted surface of the sample with water. The reservoir is fixed, and the sample is loaded by water pressure, and volume of absorbed water is recorded. Water impermeability of building materials, detection of the position, speed and acceleration of moisture movement front is determined during synchronous recording of holographic interferograms.

EFFECT: invention makes it possible to detect water impermeability of existing building materials, as well as used in development of new building materials.

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